The Intel Broadwell Desktop Review: Core i7-5775C and Core i5-5675C Tested (Part 1)
by Ian Cutress on June 2, 2015 7:45 AM ESTProfessional Performance: Windows
Agisoft Photoscan – 2D to 3D Image Manipulation: link
Agisoft Photoscan creates 3D models from 2D images, a process which is very computationally expensive. The algorithm is split into four distinct phases, and different phases of the model reconstruction require either fast memory, fast IPC, more cores, or even OpenCL compute devices to hand. Agisoft supplied us with a special version of the software to script the process, where we take 50 images of a stately home and convert it into a medium quality model. This benchmark typically takes around 15-20 minutes on a high end PC on the CPU alone, with GPUs reducing the time.
The presence of Crystal Well had a small effect on Photoscan, occurring mostly in the second phase of the calculation which is the one that also has an option to enable the GPU, indicating that memory bandwidth is an potential limitation in that segment.
Cinebench R15
Cinebench is a benchmark based around Cinema 4D, and is fairly well known among enthusiasts for stressing the CPU for a provided workload. Results are given as a score, where higher is better.
Cinebench is a historically CPU-limited benchmark, and the results show this again here. The fact that the 3.6GHz Broadwell-based i5-5675C performs so closely to the 3.9GHz Haswell-based i5-4690 is a promising sign here, as it means that despite being a mere "tick" in Intel's development efforts, there are tangible IPC increases on the desktop from Broadwell.
HandBrake v0.9.9: link
For HandBrake, we take two videos (a 2h20 640x266 DVD rip and a 10min double UHD 3840x4320 animation short) and convert them to x264 format in an MP4 container. Results are given in terms of the frames per second processed, and HandBrake uses as many threads as possible.
While no obvious improvement was seen in the low quality conversion, the double UHD conversion put the i7 above what was otherwise expected.
Hybrid x265
Hybrid is a new benchmark, where we take a 4K 1500 frame video and convert it into an x265 format without audio. Results are given in frames per second.
Unlike the Handbrake H.264 tests, the Hybrid x265 tests show a clear uptick in performance on the Broadwell processors. It is not fast enough to catch the i7-4790K and its 4.4GHz turbo clockspeed, but we see the i5-5675C shoot well past the i5-4690 despite the clockspeed deficit. Whether this is due to Broadwell architecture enhancements, Crystal Well acting as an L4 cache, or a combination of the two is difficult to determine, but the end result is substantial.
Facebook
Twitter
RSS
196 Comments
View All Comments
chizow - Tuesday, June 2, 2015 - link
Not really sure how appealing this will be for anyone on LGA1150 for the desktop, given Skylake is just around the corner. Certainly more appealing to heavy duty laptops, maybe NUCs for the better GPU capabilities but the prices are too high compared to low-end CPU + dGPU options (Alienware Alpha at $400-500 comes to mind).CuriousBeing - Tuesday, June 2, 2015 - link
I could never understand why the FX-8350/FX-8370 are never used in these benchmarks....Refuge - Tuesday, June 2, 2015 - link
It is probably because of the new test setup. They haven't re-run everything yet.Not that I consider that a good excuse, I know they are busy though and it is an answer to your question at least if that helps. :P
junky77 - Tuesday, June 2, 2015 - link
Broadwell is not for users who want high integrated GPU performance or something like thatIt's an upgrade root for many with Haswell
alacard - Tuesday, June 2, 2015 - link
Ian, buddy, you really need to step up your game when it comes to analyzing power, temperature, and noise. Seriously, Anandtech used to be a place where you could read a review on a product and have all the information you needed about it and now once i'm done reading an Anandtech review i have to look elsewhere to get the full story.Old Anandtech: Comprehensive and comprehensible.
New Anandtech: Comprehensible only because the reviews have become utterly incomprehensive.
Step it up buddy.
Navvie - Thursday, June 4, 2015 - link
A bit harsh, but agree with the point. I'm now waiting (hoping) that somebody at Ars or TPU gives a more comprehensive review.This Delta power consumption shit has to go as well.
Harry Lloyd - Tuesday, June 2, 2015 - link
So the actual CPU part takes up less than half the die. My forehead cannot take much more of this, there are just to many facepalms these days.And this is what they want us to pay $276 for - a CPU that would take up much less than 100 mm2 and should cost $100.
God, please, let Zen be a good CPU, please. I will pray every day, I want Haswell to be my last Intel CPU for a long time.
I would just like to point out, than an i3 with a 750 Ti will destroy this APU, offering PS4 performance in every single game, for pretty much the same cost.
Namisecond - Wednesday, June 3, 2015 - link
Don't expect Zen to be a some "cheap chip" AMD has stated they're going to focus on performance rather than cost. I'm expecting Zen with HBM to cost as much as comparable Intel offerings.Rather than complaining about the cost of new cutting edge hardware, put your money where your mouth is and get the i3 + 750TI. I have one here and it serves well as a secondary machine (as well as a doorstop). I'd much rather use my 2500K + 960...
shelbystripes - Tuesday, June 2, 2015 - link
I'd really love to see benchmarks of Civilization V on this thing. With such a CPU-intensive game, it'd be interesting to see how much the L4 cache makes an impact, not just with integrated graphics, but also when using dedicated graphics, to see how much the L4 cache helps the raw CPU performance in a game that is so easily CPU-constrained...Peichen - Tuesday, June 2, 2015 - link
I think Civ 5 is still single thread or maybe dual thread and have to process everything in order so each term still take minutes. I have the game at launch and all packs & DLCs and it doesn't stress my overclocked 3770K a bit. No core hits above 40% yet a term still takes forever. The game isn't 64-bit either so there is also that.